This paper explores possible steps toward incorporating the increasingly important topics of service and service systems into the core of the IS field, thereby moving toward a service-oriented core without abandoning existing tool-oriented concepts and methods. Incorporating more of a service mindset into IS would add to the many service-related topics that it already contains. A service mindset would focus more on customer activities and concerns within the analysis of IT-reliant work systems. This paper presents frameworks and related tools that provide an indication of what a more service-oriented IS field might look like.